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RideAnS [48]
3 years ago
11

Factor completely. 2x^4+4x^3-30x^2

Mathematics
1 answer:
kramer3 years ago
7 0

Answer:

Step-by-step explanation:

2x⁴ + 4x³ - 30x² = 2x²*(x² + 2x - 15)

x² + 2x - 15

Sum = 2

Product = -15

Factors = 5 ; (-3)

x² + 2x - 15 = x² + 5x - 3x - 3 *5

                  = x(x + 5) - 3(x + 5)

                  = (x + 5)(x - 3)

2x⁴ + 4x³ - 30x² = (2x²) (x + 5)(x - 3)

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6 0
3 years ago
work it out "the equation 1.5r + 15=2.25r represents the number r of movies u must rent to spend the same amount at each movie s
Alex17521 [72]

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  20

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